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Finding the Fourth Proportional to 272,988.70, 376,724.76 and 152,127.33

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Solution

The fourth proportional to 272,988.70, 376,724.76 and 152,127.33 is: 209,935.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,988.70 : 376,724.76 = 152,127.33 : x
  2. Step 2: Convert to fraction form
    272,988.70/376,724.76 = 152,127.33/x
  3. Step 3: Cross multiply
    272,988.70x = 376,724.76 × 152,127.33
  4. Step 4: Simplify right side
    272,988.70x = 57,310,131,883.69
  5. Step 5: Solve for x
    x = 57,310,131,883.69/272,988.70
  6. Step 6: Final answer
    x = 209,935.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.